REPAIR AND MAINT OF TRANSFORMERS AND ALLIED WORKS UNDER AGE E AND M OF GE SATWARI

Amount

Handling, transportation of unserviceable transformer 11 /0.433 KV of capacity 63 KVA to 250 KVA. of any make, model & type including disconnection all electric cable, earth lead, clamps and channels etc & taking down from pole (4 pole structure/2 pole pole mounted) or plinth mounted by any means of mechanically operated pulley/ mechanical crane, transportation to MES store Yard / workshop and factory for repair/maint with & including transporting back of transformer to existing places to MES store yard or other existing substation after repair & hoisting / lifting and placing in position and securing properly on pole mounted/plinth mounted including connecting all cable, earth lead, clamps and channels etc as per site requirement and testing after installation complete all as directed by Engineer-in-Charge. Notes :-(i) Please note that If any damage to transformer/OH line/cables occur during handling, transportation or during hoisting/lifting, the same will be rectified by the contractor without any extra cost to the department. .......Contd to srl item No-1.01.....

(ii) Transportation to workshop and back to site /and required T&P like crane etc are to be arranged by contractor and rate for which is deemed to be included in the item. (iii) Standby transformer of same capacity will also be provided by the contractor and rate for which is deemed to be included in the item.

Description same as per srl item No 01 above but of capacity 315 KVA to 630 KVA.

Opening the top cover of transformer step down 11 KV to 0.440 KV, of capacity 50 KVA to 100 KVA of any make, model & type out door/ indoor type, draining out oil in clean barrels, dismantling of cover & taking out the defectiv/burnt out HT/LT coils cleaning the tank and getting out the dust particles & replacing old defective coils with new coils, refitting the top cover and other accessories such as providing sundry items & reassembling after repairs to the entire satisfaction of the Engr-in-Charge and heat treatment connecting of all the electrical connections and other accessories and making the transformer absolutely leak proof, pouring oil in the transformer making all electrical connections testing after repair complete all as specified. Notes:- (i) If retrieved transformer oil's di-electric strength is very less, then it will be replaced with new one .as directed by Engineer Incharge and same will be measured & paid under relevent item. ......Contd to item No-3.01.....

(ii) If any items like winding of HT coil, reconditioning of LT coil, spares like breather, silica jel to be replaced for smooth functioning of transformer shall be measured in relevent items. (iii) Any minor item like nut, bolt are included in this item rate.

Description same as per srl item No 03 above but transformer of capacity exceeding 125 KVA and n.exc 315 KVA

Description same as per srl item No 03 above but transformer of capacity exceeding 400 KVA and n.exc 630 KVA

Winding of HT coils of transformers with super enamelled copper winding wire of appropriate gauge along with allied insulating material of capacity 50KVA to 630KVA complete all as specified & directed by Engr-in-Charge.

Winding of LT coils of transformer with cotton braided copper wire /strip of appropriate size along with allied insulating materials of capacity 50KVA to 630KVA of transformers complete all as specified and directed by Engr-in-Charge.

Taking out LV coils from its position for reconditioning by replacing worn out insulation including supplying and providing new insulation, making the LV coils to its original shape and fixing to its position after insulation, testing and commissioning complete all as specified and directed by Engr-in-Charge.

Taking out existing worn out bush rod with accessories & replacement of HT bushes (11 KVA) with rod assembly complete of metallic alloy (brass gun metal) of suitable dia & length including nuts, washers, insulator, packing oil sealing bushes for transformer of capacity 50 KVA to 630 KVA, complete all as specified and directed by Engr-in-Charge.

Taking out existing worn out bush rod with accessories & replacement of LT bush (440 volt) with rod assembly complete of metallic alloy (brass gun metal) of suitable dia & length including nuts, washers, packing oil sealing bushes suitable for transformer of capacity 50 KVA to 100 KVA, complete all as specified and directed by Engr-in-Charge.

Description same as per srl item No 10 above but capacity of transformer 100 KVA to 250 KVA.

Description same as per srl item No 10 here-in-before but capacity of transformer 250 KVA to 630 KVA.

Cork sheet gasket (for top cover) of transformers of various capacities including taking out existing perished gasket, complete all as directed by Engr-in-Charge.

Filtration, heating & dehydration of old transformer oil for increasing dielectric strength not less than 45 KV, if the results below 45 KV, the oil shall be replaced with new oil, complete all as directed by Engr-in-Charge. Notes :- New oil required for toping oil levels or for replacement maint shall be measured and paid separately.

Supply, heating and filling new transformer oil in transformers for toping up levels or for replacement of unfit oil (New oil shall be confirming to IS-335) dielectric strength not less than 65 KV, complete all as directed by Engr-in-Charge.

Silica gel assembly complete with silica gel in transformer breather of various capacities i.e. 50 KVA to 630 KVA including taking out existing unserviceable, complete all as directed by Engr-in-Charge.

Taking out existing unserviceable temp gauge & Supply and fixing commissioning and testing of dial type temperature gauge 110mm dia temperature range 0-100 degree C with thermostat built in switch, complete all as directed by Engr-in-Charge.

Taking out unserviceable tap changing gear of transformer including supply and fixing, making connection testing and commissioning new tap changing gear of transformer of any description and make complete all as specified and as directed by Engr-in-Charge.

Painting to steel and iron surfaces of transformer indoor/outdoor type of any description by preparation of old painted surfaces with two coat of synthetic enamelled grey paint with spray gun painting process capacity of transformer 50 KVA to 630 KVA and writing SM/MES No. with white paint, complete all as directed by Engr-in-Charge.

Painting to transformer guard (XPM) fencing, channels, post etc mounted on plinth with one coat of silver aluminium paint, complete all as specified and directed by Engg in Charge.

Display board of size 5 feet x 4 feet duly made on white polyvinyl sheet exactly showing the locations of the yard and the machineris and equipments installed in the sub-station duly marked properly with legends etc. and a separate chart showing the details of machineries installed with Nos, capacity/rating and make etc with computer cutting letters of approved size on poly vinyl sheet, both duly illuminated with 07 Watts LED bulbs 04 Nos with holders and accessories at the back drop of the charts for prominent appearence duly encased in a steel sheet frame enclosure and alongwith MES monogram and supported with 40mm steel pipes duly polished 8 feet long grouted in PCC 1:4:8 of size 20cmx20cmx45cm in ground including all civil works complete all as directed and approved by the Engr-in-Charge.

Filtration/dehydration of transformer oil of 33/11 KV 6.3 MVA transformer during onload (Oil capacity 4500 Litres) for increasing dielectric strength not less than 45 KV, if the results below 45 KV the oil shall be replaced with new oil. Note: New oil required for toping oil levels or for replacement shall be measured and paid in relevant items of Sch A.

Material and labour in replacement of earthing complete with galvanised steel earth plate electrode 60×60cm.× 6mm thick, buried directly in ground (earth pit not less than 2.25 metres deep below ground level) with top edge of the plate not less'than 1.5 metres below normal ground level, connected to 20×3mm copper strip as earthing lead by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified or indicated including CI Cover ,funnel ,watering pipe 20 mm bore medium grade ,wire mesh and lugs etc with GI Protection pipe of 40 mm bore light grade including testing on completion all as specified and directed. (Length of Copper earth strip & Protection pipe is up to 7.5 RM including) Note : - If soil required in earthing shall be provided by contractor without any extra cost. No extra amount shall be given to contractor for extra earthing soil.

Supply and fix in replacement of Copper Strip of size 20 x 3 mm along the wall, floor, ceiling etc all as directed by Enge-in-Charge

bamral builder

vishesh engineers

M/S S K Electricals Regd

SATISH AND CO

M/S AMBASSADOR ELECTRIC WORKS

M/S SHREE KRISHANA ENERPRISES

kailu construction co